What are the best practices to put a very simple plot on custom `show`s of the types in a package?

[abraemer]

So you want to have some “simple” plots that don’t come with a heavy dependency? I suggest you take a look at the different plotting paclages Julia has to offer:

Comparison of plotting packages

Summary of Plotting Packages Plots.jl is the most used. It’s probably the most documented, used in the most tutorials, and is used in many videos. Pros: Its main draw is that it has a lot of plugins to other packages through its recipes system, which means that a lot of odd things like plot(sol::ODESolution) or showing the sparsity of a BandedMatrix just works. With all of these integrations, it’s normally what I would recommend first to newcomers since they will generally get the most done …

Maybe VegaLite.jl or PlotlyLight.jl is a good fit for your project?